title: Cascade impactors for the size characterization of aerosols from medical inhalers: their uses and limitations.
mesh_terms: D000280:Administration, Inhalation; D000281:Administration, Intranasal; D000336:Aerosols / Q000008:administration & dosage*; D001682:Biological Availability; D004867:Equipment Design; D004869:Equipment Safety; D006801:Humans; D036501:Metered Dose Inhalers / Q000592:standards / Q000639:trends; D008962:Models, Theoretical; D009330:Nebulizers and Vaporizers / Q000592:standards* / Q000639:trends; D010316:Particle Size; D011312:Pressure; D012680:Sensitivity and Specificity
chemical_list: D000336:Aerosols